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Updating K-Type bootloader USB switcher pin

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- Only works in Prototype 2+
- No longer combining Interconnect and USB switching into the same pin (more flexibility)
This commit is contained in:
Jacob Alexander 2016-05-08 23:29:00 -07:00
parent 2a745b59c0
commit fbc8c873ec
1 changed files with 6 additions and 6 deletions
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12
Bootloader/main.c
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@ -234,11 +234,11 @@ void main()
usb_init( &dfu_device );
#if defined(_mk20dx256vlh7_) // Kiibohd-dfu
// PTA13 - USB Swap
// PTA4 - USB Swap
// Start, disabled
GPIOA_PDDR |= (1<<13);
PORTA_PCR13 = PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(1);
GPIOA_PCOR |= (1<<13);
GPIOA_PDDR |= (1<<4);
PORTA_PCR4 = PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(1);
GPIOA_PCOR |= (1<<4);
#define USBPortSwapDelay_ms 1000
#define USBPortSwapIncrement_ms 100
@ -253,7 +253,7 @@ void main()
// Only check for swapping after delay
uint32_t wait_ms = systick_millis_count - last_ms;
if ( wait_ms < USBPortSwapDelay_ms + attempt * USBPortSwapIncrement_ms )
if ( wait_ms < USBPortSwapDelay_ms + attempt / 2 * USBPortSwapIncrement_ms )
{
continue;
}
@ -264,7 +264,7 @@ void main()
if ( usb.state != USBD_STATE_ADDRESS )
{
print("USB not initializing, port swapping (if supported)");
GPIOA_PTOR |= (1<<13);
GPIOA_PTOR |= (1<<4);
attempt++;
}
}